I am having trouble with this problem. The sum of two numbers is 155. Their difference is 23. Find the numbers

Answer 1

x+y=155

x-y=23

add

2x=178

x=89

89+y=155

y=155-89

y=66

66 and 89 are the numbers

without algebra...

155/2=77.5

78 and 77

80 and 75

82 and 73

84 and 71

86 and 69

88 and 67

89 and 66 answer